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SC1943 Silicon Nitride Welding Pins, Si3N4

Catalog No. SC1943
Color Black
Density 3.21 g/cm3
Flexural strength 800 MPa
Fracture toughness 6.5 MPam 1/2
Thermal stress parameters 569 K

 

Silicon Nitride Welding Pin Description

Silicon Nitride Welding PinsSilicon nitride welding pin is made of a high-melting-point ceramic material that is extremely hard and relatively chemically inert. Due to the even performance in high temperature, Si3N4 is a commonly used ceramic material in the metallurgical industry. It has excellent thermal shock resistance due to the microstructure. The creep and oxidation resistance of Si3N4 is also superior, its low thermal conductivity and high wear resistance also make it an outstanding material that can withstand conditions of most industrial applications.

The silicon nitride nozzles and covers have the characteristics of oxidation resistance, high temperature strength and less sputter adhesion, which can prolong the service life of the welding parts.

There are 5 different methods to produce silicon nitride Si3N4 ceramic, including SRBSN, GPSN, HPSN, HIP-SN and RBSN, make the application and working material different slightly. In these 5 methods of production, GPSN is most commonly used to produce Si3N4 components.

Silicon Nitride Welding Pin Specifications 

GPSN

Property
Color Grey
Mechanical Properties
Density 3.21 g/cm3
Compressive Strength 3000 MPa
Flexural Strength 800 MPa
Weibull-Modulus m 15
Fracture Toughness KIc 6.5 MPa m^1/2
Young‘s Modulus E 320 GPa
Poisson Ratio 0.28
Hardness Vickers (HV 1) 16 GPa
Thermal Properties
Maximum Temperature (Inert Gas) 1200°C
Maximum Temperature (Air) 1100°C
Thermal Conductivity @ 20°C 28 W/mK
Thermal Conductivity @ 1000°C 16 W/mK
Thermal Expansion (20–100°C) 2*10-6/K
Thermal Expansion (20–1000°C) 3.510-6/K
Thermal Shock parameter R1 600 K
Thermal Shock parameter R2 15 W/mm
Electrical Properties
Resistivity at 20°C 10^12 Ωcm
Resistivity at 800°C 10^7 Ωcm
Dielectric constant 6 MHz

 

Silicon Nitride Welding Pin Applications

Silicon Nitride can make products including:
* Advanced ceramic tubes
* Bearing rollers
* Ceramic cutting materials
* Cyrol bearing rollers
* Nozzles
* Seal rings
* Tube forming tools
* Mechanical engineering special applications

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Silicon Nitride Welding Pins
Average rating:  
 1 reviews
by Michelle Yates on Silicon Nitride Welding Pins

As advertised, just the right quantity and size for me.